This screensaver is not a regular Screensaver, its for setting awaynick and away message on mIRC chat client. It still let you use your favorite screensaver, as it opens it and waits for it to close. Its settings are stored in the registry. It also has a daemon that runs in the background(to detect when mIRC should be set to away, since screensavers run on a separate desktop and will fail to find the mIRC window handle). To uninstall simply open the installer file that you have downloaded again.